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57 lines
1.6 KiB
57 lines
1.6 KiB
4 months ago
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// Copyright 2016 The Gemmlowp Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef GEMMLOWP_META_MULTI_THREAD_COMMON_H_
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#define GEMMLOWP_META_MULTI_THREAD_COMMON_H_
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#include "../internal/multi_thread_gemm.h"
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namespace gemmlowp {
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namespace meta {
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inline int ResolveMaxThreads(int max_threads) {
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if (max_threads == 0) {
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#ifdef _WIN32
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SYSTEM_INFO sysinfo;
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GetSystemInfo(&sysinfo);
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return sysinfo.dwNumberOfProcessors;
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#else
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static const int hardware_threads_count =
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static_cast<int>(sysconf(_SC_NPROCESSORS_CONF));
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return hardware_threads_count;
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#endif
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}
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return max_threads;
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}
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template <typename WorkersPool>
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class SimpleContext {
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public:
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SimpleContext(int max_num_threads, WorkersPool* pool)
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: max_num_threads_(max_num_threads), pool_(pool) {}
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WorkersPool* workers_pool() { return pool_; }
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int max_num_threads() { return max_num_threads_; }
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private:
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int max_num_threads_;
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WorkersPool* pool_;
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};
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} // namespace meta
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} // namespace gemmlowp
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#endif // GEMMLOWP_META_MULTI_THREAD_COMMON_H_
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